AND 



THEIR SPINNINGWORK. 



A NATURAL HISTORY 



OF THE 



WITH SPECIAL REGARD TO THEIR INDUSTRY AND HABITS. 



BY 



HEKRY O. McOOOK, D. D., 



VICE-PRESIDENT OF THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA; 



VICE-PRESIDENT OF THE AMERICAN ENTOMOLOGICAL SOCIETY ; * 



AUTHOR OF "THE AGRICULTURAL ANTS OF TEXAS," 



" THE HONEY AND OCCIDENT ANTS," 



ETC., ETC. 



VOL. II. 



PUBLISHED BY THE AUTHOR, 



ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA. 



A. D. 1890, 



